Embodiments disclosed herein provide methods and apparatus for requesting system information in a wireless communications network. The method comprises in a user equipment for a wireless network receiving, from a base station of the wireless network, a first portion of system information comprising an indication of a second portion of system information which is available upon request; and transmitting, to the base station, a first request requesting that the second portion of system information be transmitted to the user equipment. The method further comprises responsive to a determination that the requested second portion of system information has not been received successfully by the user equipment, transmitting, to the base station, a second request for the second portion of system information.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The method of claim 1, wherein the first portion of the system information further comprises an indication of resources on which the second portion of the system information is transmitted.
3. The method of claim 2, wherein the indication of the resources comprises an indication of a transmission window in which the second portion of the system information is transmitted.
4. The method of claim 1, wherein the first portion of the system information is broadcast periodically by the base station.
5. The method of claim 1, wherein duration of a first timer is provided in the first portion of the system information.
6. The method of claim 1, further comprising, responsive to the determination that the requested second portion of the system information has not been received successfully by the user equipment, transmitting, to the base station, a third request for the second portion of the system information.
8. The method of claim 7, wherein the first portion of the system information comprises an indication of the maximum number.
9. The method of claim 1, wherein the first request comprises a random access preamble message.
10. The method of claim 1, wherein the first request is transmitted as part of a radio resource control connection message.
12. The method of claim 1, wherein the indication of the second portion of the system information comprises a list of system information blocks or system information messages belonging to the second portion of the system information.
15. The user equipment of claim 14, wherein the first portion of the system information further comprises an indication of resources on which the second portion of the system information is transmitted.
16. The user equipment of claim 15, wherein the indication of the resources comprises an indication of a transmission window in which the second portion of the system information is transmitted.
17. The user equipment of claim 14, wherein the first portion of the system information is broadcast periodically by the base station.
20. The user equipment of claim 19, wherein the first portion of the system information comprises an indication of the maximum number.
21. The user equipment of claim 14, wherein the first request is transmitted as part of a radio resource control connection message.
22. The user equipment of claim 21, wherein the user equipment is operable to, responsive to receiving an acknowledgment message to the radio resource control connection message, determine that the radio resource control connection message has been received by the base station.
23. The user equipment of claim 14, wherein the indication of the second portion of the system information comprises a list of system information blocks or system information messages belonging to the second portion of the system information.
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May 2, 2018
May 23, 2023
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